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Forum Index > Rifles general discussion > .17 HMR and Bore/Throat Polishing

.17 HMR and Bore/Throat Polishing

23 Jan 2019
@ 06:13 am (GMT)

Ryan Nafe

Fellas,

I’m looking to get a rimfire rifle set up with peep sights to use for plinking, squirrels, and rabbits. I only go for head shots on the squirrels and rabbits (the small game version of the “meat-saver” shot) and with peep sights that means a maximum distance of around 50 yards, for me.

I think the .17 has a major advantage in trajectory over the Eley Subsonic Hollow .22LR I use in my scoped Savage MkI, especially since I’d like to use iron sights.

With another S-TAC 3-16x42 scope I would be fine with the .22LR because it would be a piece of cake to dial up the range.

But iron sights are a different thing, I’d prefer to sight in at a fixed distance and be good to go out to the limits of my ability to clearly see the animal’s head. Once zeroed on paper I’ll just use golf balls to replicate the head size and establish the limits of my effective range.

Point of impact with the .17 HMR will remain virtually the same out to 75 yards, so I can zero the rifle at 25 and then I can use the rifle to shoot anything I can clearly see without having to adjust for holdover.

BUT - I’m a little concerned about being able to polish the bore and throat of the rifle with poly pads because it’s such an incredibly small bore diameter. Is this feasible, can I actually do it fairly easily, or is that bore diameter just too small to do this?

I would imagine it’s quite difficult for manufacturers to get the bore characteristics just right on the .17’s, so I’m anticipating the need to polish it right away.

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20 Apr 2019
@ 06:31 am (GMT)

Ryan Nafe

Re: .17 HMR and Bore/Throat Polishing
Hey fellas, just thought I’d give an update to this situation on my end, since it was recently concluded. At least as far as the choice of rifles.

Since I’m a firm believer that every rifle shooter needs a reasonably accurate and reliable .22 LR, I decided to begin by replacing my old Savage MkI. Picked up a Marlin M60, and mounted the very inexpensive (but surprisingly functional at close ranges) 3-9x32mm scope on the Marlin. Here’s a little bit of practice shooting at 25 yards and a rabbit I shot last week at a paced-off distance of what turned out to be 60 yards:







So once I had the .22 LR situation sorted out, I re-commenced my search for a flatter-shooting and slightly more powerful rimfire. After much deliberation and waffling, I decided to go with a Savage .17 WSM Target model, the heavy-barrel stainless action in a Boyd’s thumbhole stock. Went with a relatively inexpensive but high-magnification Vortex Crossfire II 6-18x44 AO with a standard duplex reticle.

The rifle is on it’s way to my dealer, along with the scope and some basic Vortex aluminum rings. I intend to use the 25 grain Winchester ammo, and I’ll probably zero it at 75 yards, which should keep the bullet within about .75” of the point of aim between 25 and 125 yards.

There is a bunch of ammo available locally, the cost of the ammo is still significantly lower than any centerfire cartridge, and I should be able to make clean kills on everything up to be size of coyotes inside 100 yards.

And yes, I realize that the power level of the .17 WSM is still a far cry from something like a .223, but it’s also a significant improvement in trajectory and energy over any other rimfire available, and should be at least 1 MOA accurate. The 25 grain ammo looks like the way to go, it’s got essentially the same SD as a 40 grain .22 LR bullet but roughly twice the BC and twice the muzzle velocity. Should be fun at the range as a practice rifle and more than adequate for small game and small predators.

If anyone is curious, I’d be happy to let you guys know how the B Mag and Vortex combination works out as far as accuracy goes.
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